Geodesic
Singular operators satisfying an intertwining relation
Teoretičeskaâ i matematičeskaâ fizika, Tome 121 (1999) no. 2, pp. 264-270 
M. V. Feigin. Singular operators satisfying an intertwining relation. Teoretičeskaâ i matematičeskaâ fizika, Tome 121 (1999) no. 2, pp. 264-270. http://geodesic.mathdoc.fr/item/TMF_1999_121_2_a3/
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Voir la notice de l'article provenant de la source Math-Net.Ru

An intertwining relation between the Beltrami–Laplace operator with an added potential and the Beltrami–Laplace operator is considered on a Riemannian manifold. It is shown that the potential singularities of codimension one form completely geodesic hypersurfaces.

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